Kubota U50-5, Operating Instructions Manual

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05/2020
Operation
Particle filter regeneration
The machine has an exhaust system that is equipped with a diesel particle filter, which filters out carcinogenic soot
particles from the exhaust gases.
The particle filter must be regenerated regularly in order to prevent the soot particles from clogging the particle
filter rendering it useless. To do so, the exhaust temperature is increased automatically to incinerate the soot in
the particle filter.
The particle filter is regenerated automatically. It can also be manually started or blocked.
General notes
High engine speeds result in a higher temperature of the exhaust gas. This burns the particulate in the particle
filter. This reduces the number of regeneration cycles required when compared to lesser load on the engine. The
exhaust gas temperature is not high enough to burn the soot particles in the particle filter in idling and part-load
conditions. As a consequence, the number of regeneration cycles increases. Hence, it is advisable not to operate
the engine in idle condition frequently.
Health hazard!
Soot particles from the exhaust gases are carcinogenic.
The regeneration should be done outdoors only.
Despite using a particle filter, there is still a risk of poisoning by inhaling the exhaust gases!
- Observe the safety regulations of TRGS 554 and any national regulations.
Risk of fire and injury!
During regeneration, the exhaust gas temperatures increase significantly, and the gases leaving the
exhaust system are hotter than during normal operation.
There is a risk of fire and injury when people, animals, plants or flammable materials are close to the
exhaust system!
- The exhaust system and the space around the exhaust system should be kept free of flamma-
ble materials.
- Stop the particle filter regeneration if there are any risks to the environment.
- Do not leave the machine unattended during particle filter regeneration.
- The particle filter should be regenerated only outdoors.
The particle filter regeneration may be disabled and
released any time using the inhibit switch (1).

The particle filter regeneration lock will be displayed
by the indicator and a related message on the display.
Risk of damage to the particle filter!
The particle filter can be damaged irreparably by the
carbon particles if incorrect engine oil or incorrect die-
sel fuel is used.
- Use only engine oils with the specification
"API CJ-4" or "API CK-4".
- Use only low-sulphur diesel fuels.
- Adhere to the list of operating materials.
STOP
STOP
KX060-05_067
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